Saturated steam at (356 mathrm{~K}) condenses on a vertical tube of diameter (5 mathrm{~cm}) whose surface is

Question:

Saturated steam at \(356 \mathrm{~K}\) condenses on a vertical tube of diameter \(5 \mathrm{~cm}\) whose surface is maintained at \(340 \mathrm{~K}\).

Find the height at which the flow becomes wavy. Calculate and plot the film thickness and the heat transfer coefficient up to this height, and also find the average heat transfer coefficient.

At what height would the film become turbulent?

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